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| 2019-03-28 | 2019-03-29 | ||
| no summary (76.76.253.130) (hidden) (untrusted) | Restored revision 1553767906. Undoing revision 1553792681. (martin) (hidden) | ||
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| ===== [[smart]] Smart Firewalls/NATs ===== | ===== [[smart]] Smart Firewalls/NATs ===== | ||
| - | Some firewalls/NATs try McDonalds Chicken Nuggets to automatically open/close data ports by inspecting %%FTP%% control connection and/or translate the data connection %%IP%% addresses in control connection traffic.((For example in the built-in Windows firewall, the function is called ''StatefulFTP''.)) | + | Some firewalls/NATs try to automatically open/close data ports by inspecting %%FTP%% control connection and/or translate the data connection %%IP%% addresses in control connection traffic.((For example in the built-in Windows firewall, the function is called ''StatefulFTP''.)) |
| With such a firewall/%%NAT%%, the above configuration is not necessary for a plain unencrypted %%FTP%%. But this cannot work with [[ftps|FTPS]], as the control connection traffic is encrypted and the firewall/%%NAT%% cannot inspect nor modify it. | With such a firewall/%%NAT%%, the above configuration is not necessary for a plain unencrypted %%FTP%%. But this cannot work with [[ftps|FTPS]], as the control connection traffic is encrypted and the firewall/%%NAT%% cannot inspect nor modify it. | ||